mirror of https://github.com/apache/cloudstack.git
70 lines
2.7 KiB
Java
70 lines
2.7 KiB
Java
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package com.cloud.ha;
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import javax.ejb.Local;
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import javax.inject.Inject;
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import org.apache.log4j.Logger;
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import com.cloud.agent.AgentManager;
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import com.cloud.agent.api.CheckVirtualMachineAnswer;
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import com.cloud.agent.api.CheckVirtualMachineCommand;
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import com.cloud.exception.AgentUnavailableException;
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import com.cloud.exception.OperationTimedoutException;
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import com.cloud.host.Host;
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import com.cloud.host.Status;
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import com.cloud.utils.component.AdapterBase;
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import com.cloud.vm.VirtualMachine;
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import com.cloud.vm.VirtualMachine.PowerState;
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@Local(value = Investigator.class)
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public class CheckOnAgentInvestigator extends AdapterBase implements Investigator {
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private final static Logger s_logger = Logger.getLogger(CheckOnAgentInvestigator.class);
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@Inject
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AgentManager _agentMgr;
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protected CheckOnAgentInvestigator() {
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}
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@Override
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public Status isAgentAlive(Host agent) {
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return null;
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}
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@Override
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public boolean isVmAlive(VirtualMachine vm, Host host) throws UnknownVM {
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CheckVirtualMachineCommand cmd = new CheckVirtualMachineCommand(vm.getInstanceName());
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try {
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CheckVirtualMachineAnswer answer = (CheckVirtualMachineAnswer)_agentMgr.send(vm.getHostId(), cmd);
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if (!answer.getResult()) {
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s_logger.debug("Unable to get vm state on " + vm.toString());
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throw new UnknownVM();
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}
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s_logger.debug("Agent responded with state " + answer.getState().toString());
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return answer.getState() == PowerState.PowerOn;
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} catch (AgentUnavailableException e) {
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s_logger.debug("Unable to reach the agent for " + vm.toString() + ": " + e.getMessage());
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throw new UnknownVM();
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} catch (OperationTimedoutException e) {
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s_logger.debug("Operation timed out for " + vm.toString() + ": " + e.getMessage());
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throw new UnknownVM();
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}
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}
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}
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